c-- ccc ccd cck cco ccr ccs cct ccu cdc cdd cdk cdo cdr cds cdt cdu ckc ckd cko cks ckt co- coc cod cok coo cor cos cot cou crc crd crk cro crr crs crt cru csc csd csk cso csr css cst csu ctc ctd ctk cto ctr cts ctt ctu cuc cud cuk cuo cur cus cut cuu dcc dcd dck dco dcr dcs dct dcu ddc ddd ddk ddo ddr dds ddt ddu dkc dkk dko dkr dks dkt dku doc dod dok doo dor dos dot dou drc drd drk dro drr drs drt dru dsc dsd dsk dso dsr dss dst dsu dtc dtd dtk dto dtr dts dtt dtu duc dud duk duo dur dus dut k-t kcc kcd kck kcr kcs kct kcu kdc kdk kdo kdr kds kdt kdu kkc kkk kkr kks kkt kku koc kod kok koo kor kos kot kou krc krd krk kro krr krs krt kru ksc ksd ksk kso ksr kss kst ksu ktc ktk kto ktr kts ktt ktu kuc kud kuk kur kus kut kuu oc- occ ocd ock oco ocr ocs oct ocu odc odd odo odr ods odt odu okc okd okk oko okr oks oku oo- ooc ood ook ooo oor oos oot or- orc ord ork oro orr ors ort oru os- osc osd osk oso osr oss ost osu ot- otc otd otk oto otr ots ott otu ou- ouc oud ouk ouo our ous out rcc rcd rco rcr rcs rct rcu rdc rdd rdo rdr rds rdt rdu rkc rkk rko rks rkt rku roc rod rok roo ror ros rot rou rrc rrd rrk rrr rrs rrt rru rsc rsd rsk rso rsr rss rst rsu rtc rtd rtk rto rtr rts rtt rtu ruc rud ruk ruo rur rus rut ruu scc scd sck sco scr scs sct scu sdc sdd sdk sdo sdr sds sdt sdu sk- skc skd skk sko skr sks skt sku soc sod sok soo sor sos sot sou sr- src srd srk sro srr srs srt ss- ssc ssd ssk sso ssr sss sst ssu stc std stk sto str sts stt stu suc sud suk suo sur sus sut suu tcc tcd tck tco tcr tcs tct tcu tdc tdd tdk tdo tdr tds tdt tdu tkc tkk tko tkr tks tkt to- toc tod tok too tor tos tot tou trc trd trk tro trr trs trt tru tsc tsd tsk tso tsr tss tst tsu ttc ttd ttk tto ttr tts ttt ttu tuc tud tuk tuo tur tus tut tuu ucc ucd uck uco ucr ucs uct ucu udc udd udk udo udr uds udt udu ukc ukk ukr uku uoc uod uok uoo uor uos uot ur- urc urd urk uro urr urs urt uru usc usd usk uso usr uss ust usu utc utd utk uto utr uts utt utu uuc uur uus uut uuu

-ous c-cd cccc cccs cccu ccdc ccdr ccds ccoc ccod ccrc ccrs ccrt ccsd ccss ccst cctc cctt ccuc ccus ccut cd-r cdcs cddr cdos cdot cdrs cdss ckck ckco ckcs ckdo ckdu ckoc ckoo ckor ckos ckot ckrc ckrd ckso ckst ckts cock coco coct cocu codd cods cok- coko cood cook coos coot cor- corc cord cork coro corr cors cort cosc coso coss cost cotc coto cots cott cotu coud couk cour cous cout crcc crcr crdc crkc croc crod crok croo cror crot crrt crss crst crtc crts crud cruk crus crut cscc cscd csco cscr cscs csdr csks csor csos csot csrc csrd csrs cssd cssr cstc cstd csto cstr csts csur csus ctor ctos ctot ctrc ctrs ctsc ctss ctsu ctts cucc cuck cuds cuk- curd curo curr curs curt cusd cusk cuso cuss cust cusu cut- cutc cuto cuts cutt dccc dccs dcct dccu dcds dcos dcrk dcsc dcss dctc dcts dddd ddoc ddot ddrc ddss ddts dkdc dock doco docs doct docu dod- dodd dodo dods doko dood dook door doos doot dorc dord dork doro dorr dors dort doru dosk doso doss dost dotd dotk doto dots dott douc doud douk dour dous dout drod drot drou drrs druk drus drut druu dscc dscr dscs dsdr dsos dsrc dsrr dssc dsst dstc dsto dsts dtcc dtor dtot dtss duck duco ducs duct dudd dudo duds dudu dukt duku duo- duos durk duro durt duru dusk dust duts duur duut k-os kccc kccd kcck kccr kcct kccu kcdc kcdd kcdr kcds kcdu kckc kckk kcko kckr kcor kcos kcot kcou kcrc kcro kcrr kcrs kcrt kcru kcsc kcsd kcsr kcss kcst kcsu kctc kcto kctu kcuk kdcc kdcd kdco kdcr kddc kddd kddk kddr kdkd kdkk kdko kdkr kdkt kdoc kdok kdot kdro kdrs kdsc kdsd kdsk kdsr kdss kdst kdsu kdtd kdtr kduc kdur kdus kdut kkcd kkck kkco kkcr kkcs kkct kkdc kkdd kkdo kkdt kkkk kkoo kkor kkot kkrc kkrk kkro kkrr kkrs kkrt kksd kksr kkss kkst kksu kktc kktk kkts kktu kkus kkut kkuu kocd kock kocs koct kodk kodo kods kodt kodu kokc kokk koko kokr koks koku kooc kook kooo koor koos koot koou korc kord kork koro korr kors kort koru kos- kosc kosd koso kosr koss kost kosu kotc kotd kotk koto kotr kots kott kotu kour kous kout kouu krcc krcd krco krcs krcu krdc krdd krdo krdr krds krdu krkc krkd krkk krko krkr krks krku kroc krod krok kroo kror kros krrc krrk krro krrr krrs krrt krsc krsd krsk krsr krss krst krsu krtc krtk krto krtr krts kruc kruk krur ksck ksco kscr kscs kscu ksdc ksdk ksdr ksds kskd kskk ksko kskr ksks ksku ksoc ksok ksoo ksor ksos ksou ksro ksrr ksrs ksrt ksso kssr ksss ksst kssu kstc kstk ksto kstr ksts kstt kstu ksud ksut ksuu ktcc ktck ktco ktcr ktcs ktdc ktdd ktdk ktdo ktdr ktkc ktkk ktko ktkr ktks ktkt ktku ktoc ktok ktoo ktor ktot ktrc